Title:
中央の調節部分を伴う近視用角膜リング
Document Type and Number:
Japanese Patent JP2005507741
Kind Code:
A
Abstract:
A bio-compatible corneal ring for myopic correction and accommodation for presbyopia. The corneal ring is made from a bio-compatible material with a lens body having an inner and outer circular edge. The inner circular edge forms an opening in the lens body. The posterior surface of the lens body has a uniform radii of curvature between the inner and outer circular edges. The anterior surface has two radii of curvatures providing for correction of myopia. The first radii of curvature extends from near the outer circular edge to a junction point before the inner circular edge. The second radii of curvature extends from the junction point and continues to the inner circular edge. The inner and outer circular edges have a thickness of less than about 0.020 mm, but preferably are about 0.010 mm or less.
Inventors:
Nigam, Arok
Application Number:
JP2003541504A
Publication Date:
March 24, 2005
Filing Date:
November 07, 2002
Export Citation:
Assignee:
Anamed Ink.
International Classes:
A61L27/00; A61F2/14; (IPC1-7): A61F2/14; A61L27/00
Attorney, Agent or Firm:
Takao Suzuki
Koichi Kajisaki
Yuzo Ozaki
Toshihiko Taniguchi
Koichi Kajisaki
Yuzo Ozaki
Toshihiko Taniguchi